APPLICATION OF QUADRATIC BLOCKS AND GAFURAT MEDIA TO IMPROVE UNDERSTANDING OF QUADRATIC FUNCTIONS IN CLASS XI STUDENTS AT SMA

Angelica Sigalingging; Elisabeth Romauli  Purba; Mariatul Kiftia  Shakila; Tabitha Gabriela  Sianipar; Budi Halomoan  Siregar

doi:10.51878/science.v6i1.9486

Authors

Angelica Sigalingging Faculty of Mathematics and Natural Sciences, Department of Mathematics, Mathematics Education Study Program, State University of Medan
Elisabeth Romauli Purba Faculty of Mathematics and Natural Sciences, Department of Mathematics, Mathematics Education Study Program, State University of Medan
Mariatul Kiftia Shakila Faculty of Mathematics and Natural Sciences, Department of Mathematics, Mathematics Education Study Program, State University of Medan
Tabitha Gabriela Sianipar Faculty of Mathematics and Natural Sciences, Department of Mathematics, Mathematics Education Study Program, State University of Medan
Budi Halomoan Siregar Faculty of Mathematics and Natural Sciences, Department of Mathematics, Mathematics Education Study Program, State University of Medan

DOI:

https://doi.org/10.51878/science.v6i1.9486

Keywords:

Instructional Media, Quadratic Functions, Quadratic Blocks

Abstract

This study aims to describe the implementation of Quadratic Blocks and Gafurat in enhancing students’ understanding of quadratic functions. The research background is based on the limited use of instructional media at SMA Swasta ERIA Medan, which affects students’ comprehension of factorization and graphing of quadratic functions. The study employed a qualitative descriptive method with an implementation study design. The participants were eleventh-grade students and a mathematics teacher who collaborated in the learning process. Data were collected through with observation and semi-structured interviews after the media implementation and analyzed using data reduction with documentation, presentation, and conclusion drawing techniques. The findings indicate that Quadratic Blocks media helped students concretely understand the factorization process of quadratic functions, while Gafurat facilitated the construction of parabola graphs. Students reported feeling more motivated, confident, and actively engaged in group discussions. The teacher highlighted that the media were practical, relevant to schools with limited facilities, and effective in supporting deep learning. Therefore, the use of Quadratic Blocks and Gafurat media can serve as an innovative alternative to improve students’ conceptual understanding and is recommended for integration into high school mathematics instruction.

ABSTRAK

Penelitian ini bertujuan untuk mendeskripsikan implementasi Balok Kuadrat dan Gafurat dalam meningkatkan pemahaman siswa tentang fungsi kuadrat. Latar belakang penelitian didasarkan pada keterbatasan penggunaan media pembelajaran di SMA Swasta ERIA Medan, yang memengaruhi pemahaman siswa tentang faktorisasi dan pembuatan grafik fungsi kuadrat. Penelitian ini menggunakan metode deskriptif kualitatif dengan desain studi implementasi. Partisipan adalah siswa kelas sebelas dan seorang guru matematika yang berkolaborasi dalam proses pembelajaran. Data dikumpulkan melalui observasi dan wawancara semi-terstruktur setelah implementasi media dan dianalisis menggunakan teknik reduksi data dengan dokumentasi, presentasi, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa media Balok Kuadrat membantu siswa memahami secara konkret proses faktorisasi fungsi kuadrat, sedangkan Gafurat memfasilitasi pembuatan grafik parabola. Siswa melaporkan merasa lebih termotivasi, percaya diri, dan aktif terlibat dalam diskusi kelompok. Guru menyoroti bahwa media tersebut praktis, relevan dengan sekolah dengan fasilitas terbatas, dan efektif dalam mendukung pembelajaran mendalam. Oleh karena itu, penggunaan media Balok Kuadrat dan Gafurat dapat berfungsi sebagai alternatif inovatif untuk meningkatkan pemahaman konseptual siswa dan direkomendasikan untuk diintegrasikan ke dalam pengajaran matematika sekolah menengah.

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